In terms of market share, Marktest is clearly lagging behind, losing to WebProspector in all segments.
WebProspector has better usage coverage in more websites categories. Including Business & Industry, Internet & Telecom, Arts & Entertainment, Shopping and 7 other categories.
Marktest hasn't got a lead over WebProspector in any websites category.
WebProspector is leading in most countries, including Germany, Austria, Netherlands, Switzerland and 14 other countries.
Marktest is leading in Brazil.